ABB RET630 - Supervision Functions; Energy Monitoring; Current Circuit Supervision

Table 77. Energy monitoring (EPDMMTR)
Characteristic Value
Operation accuracy At all three currents in range 0.10…1.20 x In
n
At all three voltages in range 0.50…1.15 x U
n
At the frequency f = f
n
Active power and energy in range |PF| > 0.71
Reactive power and energy in range |PF| <
0.71
±1.5% for energy
Suppression of harmonics DFT: -50dB at f = n x f
n
, where n = 2, 3, 4, 5,
…
Supervision functions
Table 78. Current circuit supervision (CCRDIF)
Characteristic Value
Operate time
1)
< 30 ms
1) Including the delay of the output contact.
Table 79. Current circuit supervision (CCRDIF) main settings
Parameter Function Values (Range) Step
Start value CCRDIF 0.05...2.00 pu 0.01
Maximum operate
current
CCRDIF 0.05...5.00 pu 0.01
Transformer Protection and Control 1MRS756788 A
RET630
Product version: 1.0 Issued: 15.09.2009
ABB 49